#!/bin/bash

literal1=
literal2=""
literal3=348
literal4=string_without_quotation
literal5="string_with_quotation"
literal6='string_with_quotation'
literal7="A B C"
for v in ${!literal@}; do echo "$v: '${!v}'"; done
echo -en "\n"






math1=$(( 1 + 1 ))
math2=$(( 3 ^ 4 ))
math3=$(( literal3++ % 7  ))
math4=$(( literal3++ % 7  ))
math5=$(( math7 = 3 ))
math6=$(( math7 = math7 * 1024 ))
for v in ${!math@}; do echo "$v: '${!v}'"; done
echo -en "\n"







cmd1=$(ls)
cmd2=$(pwd)
cmd3=$(ls -lrt)
cmd4=$(echo "\n1")
cmd5=$(echo -en "\n1")
for v in ${!cmd@}; do echo "$v: '${!v}'"; done
which echo
echo -en "\n"








var1=$cmd1
var2=$cmd2
var3=$cmd3
var4=$cmd4
var5=$cmd5
var6=$math7
for v in ${!var@}; do echo "$v: '${!v}'"; done
echo -en "\n"







hybird="now at $(pwd), use $literal3, find $(( math7 / 1024 ))KB"
echo $hybird
